Satoru got severely injured in his fight with Sukuna. But at least he won.

Now, he lies on a bed on the Jujutsu Tech infirmary after Shoko performed several surgeries on him. The anaesthesia has him completely gone, he's delirious.

"My wife will get upset is she sees you touching me like that on my chest." Satoru slurred with the words when you placed your hand on his chest.

You're his wife.